Do I need a Tune?
#1
Do I need a Tune?
Hello, so I am in the middle of a 5.3L swap and have manage to piece together everything as far as harness goes. The harness i got was from a 6.0L (as far as what i know) so im assuming that means the pcm that i got with the harness is also a 6.0L pcm. The motor i am using is a 5.3L genIII bored over to ls1 standard 3.905. the question here is after installing everything and running my wiring for fuel pump, drive by wire, etc. will i be able to just turn key and hope for a easy start up? or will i need to get my pcm flashed for the setup that i am running?
#3
FormerVendor
iTrader: (4)
I am assuming this is for an engine swap in a non factory ls vehicle. It will not start without getting VATS deleted in the pcm. With just VATS deleted it will run but you will have a long list of codes. Even its a stock motor you will need a tune to make it run 100% right.
#4
TECH Resident
iTrader: (24)
I am assuming this is for an engine swap in a non factory ls vehicle. It will not start without getting VATS deleted in the pcm. With just VATS deleted it will run but you will have a long list of codes. Even its a stock motor you will need a tune to make it run 100% right.